CBP data indicates that there are more establishments categorized as construction businesses with between one and four employees in 55421 than in any other category.
The following table shows how many retail trade businesses with between one and four employees were in 55421 during the period from 2012 to 2016.
Retail trade businesses with between one and four employees in 55421 (2012-2016)
Year
Total businesses
2012
32
2013
36
2014
31
2015
35
2016
29